Lift Framework example source code file (SimpleController.scala)

This example Lift Framework source code file (SimpleController.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lift Framework tags/keywords

boolean, box, box, empty, empty, full, httprequest, nil, none, req, simplecontroller, some, string, string

The Lift Framework SimpleController.scala source code

/*
 * Copyright 2007-2011 WorldWide Conferencing, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.liftweb
package http

import scala.collection.immutable.TreeMap
import net.liftweb.common._
import net.liftweb.util._
import provider._

/**
 * The base trait of Controllers that handle pre-view requests
 */
trait SimpleController
 {
  def request: Req

  def httpRequest: HTTPRequest

  def param(name: String): Box[String] = {
    request.params.get(name) match {
      case None => Empty
      case Some(nl) => nl.take(1) match {
        case Nil => Empty
        case l => Full(l.head)
      }
    }
  }

  def post_? : Boolean = request.post_?

  def get(name: String): Box[String] =
    httpRequest.session.attribute(name) match {
      case null => Empty
      case n: String => Full(n)
      case _ => Empty
    }

  def set(name: String, value: String) {
    httpRequest.session.setAttribute(name, value)
  }

  def unset(name: String) {
    httpRequest.session.removeAttribute(name)
  }
}